Viscous Lambda CDM universe models

Author(s)

Publication date

2011-03-30

Series/Report no

Astrophysics and Space Science;333 (2)

Publisher

Springer Verlag

Document type

Abstract

We explore flat ACDM models with bulk viscosity, and study the role of the bulk viscosity in the evolution of these universe models. The dynamical equations for these models are obtained and solved for some cases of bulk viscosity. We obtain differential equations for the Hubble parameter H and the energy density of dark matter ρm, for which we give analytical solutions for some cases and for the general case we give a numerical solution. Also we calculate the statefinder parameters for these models and display them in the s–r-plane.

Keywords

Version

© The Author(s) 2011. This article is published with open access at Springerlink.com

Permanent URL (for citation purposes)

  • http://hdl.handle.net/10642/1104